mx.15460redarrow.info has no MX records.
Question and response
Question
dig mx.15460redarrow.info. MX
Answer
The response has no answer records.
Authority
15460redarrow.info. 3600 SOA dns.15460redarrow.info. hostmaster.15460redarrow.info. 1570007966 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0